CN106586460B - Screw conveyor, control device and feeding method - Google Patents
Screw conveyor, control device and feeding method Download PDFInfo
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- CN106586460B CN106586460B CN201510666125.2A CN201510666125A CN106586460B CN 106586460 B CN106586460 B CN 106586460B CN 201510666125 A CN201510666125 A CN 201510666125A CN 106586460 B CN106586460 B CN 106586460B
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 46
- 238000012544 monitoring process Methods 0.000 claims description 15
- 230000002950 deficient Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 239000002775 capsule Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to the technical field of concrete metering, and discloses a spiral conveyor, a control device and a feeding method, wherein the spiral conveyor comprises: the device comprises an outer pipe, a spiral conveying shaft arranged in the outer pipe and a driving device for driving the spiral conveying shaft to rotate, wherein the spiral conveying shaft comprises a rotating shaft and spiral blades arranged on the rotating shaft; still include filling device, filling device includes: the air bag is arranged on the inner side wall of the outer pipe, and the air supply device is connected with the air bag and used for inflating the air bag, wherein the air bag is located between the inner side wall of the outer pipe and the helical blade, and when the air supply device inflates the air bag to the first pressure in the air bag, the air bag at least partially fills a gap between the inner side wall of the outer pipe and the outer side wall of the helical blade. In above-mentioned technical scheme, fill the clearance between helical blade and the outer tube inside wall through adopting the gasbag to avoided screw conveyer when carrying the material, the material is remaining in the outer tube, thereby caused the inaccurate condition of pay-off measurement.
Description
Technical field
The present invention relates to the technical field of conveying metering more particularly to a kind of control dresses of screw conveyor air bag inflation
It sets and feeding method.
Background technique
The material metering at mixed station is measured frequently with batch, and the material measured is sent into mixing machine, due to space limitation, meter
Usually there is a distance between amount scale and blender, helical feed need to be generally used, as shown in Figure 1, Fig. 1 shows the prior art
In screw conveyor structure.Comprising: which outer tube 2 and the screw conveyor shaft 3 being arranged in outer tube 2, further include that driving should
The driving device 1 that screw conveyor shaft 3 rotates, wherein there is certain interval between the helical blade and tube wall on the screw conveyor shaft 3,
There are certain remnants in transmission process, influences the available accuracy measured in the first batch, and residual volume is uncontrollable, usually fluctuating change, shadow
Actual measuring accuracy fluctuation is rung, product quality is finally influenced.
Summary of the invention
The present invention provides a kind of screw conveyor, control device and feeding method, to solve spiral transferring in the prior art
The case where sending machine remaining material, actual measuring accuracy caused to fluctuate.
The present invention provides a kind of screw conveyor, which includes: outer tube, and the spiral shell in the outer tube is arranged in
Conveying axis is revolved, drives the driving device of the screw conveyor shaft rotation, wherein the screw conveyor shaft includes rotary shaft and sets
Set the helical blade in the rotary shaft；
It further include filling device, the filling device includes:
Air bag is set on the outer tube inner sidewall, and the confession for connecting with the air bag and being used to inflate to the air bag
Device of air, wherein the air bag is between the outer tube inner sidewall and the helical blade, and in the feeder to institute
It states air bag to be inflated in air bag when there is first pressure, the air bag at least partly fills the outer tube inner sidewall and the spiral shell
Gap between the lateral wall of vane piece.
In the above-mentioned technical solutions, by using air bag by the gap filling between helical blade and outer tube inner sidewall, from
And screw conveyor is avoided when conveying material, material remains in outer tube, to cause the situation of feeding metering inaccuracy.
Preferably, the filling device further include: connect with the air bag and be used to detect gas pressure in the air bag
Pressure sensor.The pressure in air bag is detected by pressure sensor.
Preferably, the filling device further includes control device, and the control device controls the feeder to air bag
It is inside filled with gas, until the pressure of the air bag of pressure sensor detection reaches first pressure value.Pass through control device
Improve the degree of automation.
Preferably, the filling device further includes the monitoring sensor for monitoring the throat-fed situation of the outer tube；
The control device is also used to, when the feed inlet for receiving the monitoring sensor monitoring stops feeding, control
The feeder is inflated air bag.It is further to improve the degree of automation.
Preferably, the air bag is provided with exhaust valve.
Preferably, the exhaust valve is solenoid valve, and the control device is also used to control the solenoid valve and carries out to air bag
Exhaust.Air bag is controlled to deflate.
Preferably, the air bag is elastic balloon.Improve the filling capacity of air bag.
Preferably, the elastic balloon is rubber pneumatic bag.Improve the wearability of air bag.
Preferably, air bag is in the structure of hollow tubular, and the air bag is along the axially extending of screw conveyor.
Preferably, the cross section of air bag is in convex structure, and the air bag is and described along the axially extending of screw conveyor
The side of defective material material on the inner sidewall of outer tube is arranged in air bag.
The present invention also provides a kind of control device of above-mentioned screw conveyor, which includes:
Receiving module, for receiving the charging information of outer tube and receiving the air pressure in the air bag detected；
Data module controls the feeder to being filled with gas in the air bag when the outer tube stops feeding, and
When air pressure in received air bag is lower than first pressure value, control the feeder to inputting gas in the air bag until
Air pressure in received air bag reaches first pressure value.
In the above-mentioned technical solutions, the degree of automation to air bag controlled is improved by above-mentioned control device.
Preferably, the receiving module is also used to receive the charging information of outer tube；
The data processing module is also used to control the feeder when the outer tube stops feeding and start to described
Gas is filled in air bag.It is further to improve the degree of automation.
The present invention also provides a kind of feeding method of screw conveyor, the feeding method the following steps are included:
Screw conveyor feed inlet stop charging when, into air bag inflate and by air bag fill outer tube inner sidewall and
Gap between helical blade lateral wall；
Screw conveyor shaft rotation is driven, the material remained in outer tube is transferred out.
In the above-mentioned technical solutions, by using air bag by the gap filling between helical blade and outer tube inner sidewall, from
And screw conveyor is avoided when conveying material, material remains in outer tube, to cause the situation of feeding metering inaccuracy.
Preferably, it inflates in the air bag and by between air bag filling outer tube inner sidewall and helical blade lateral wall
Gap specifically:
The pressure in air bag is detected by pressure sensor, and gas is filled with into air bag by feeder, until institute
The pressure for stating the air bag of pressure sensor detection reaches first pressure value.Improve the degree of automation.
Detailed description of the invention
Fig. 1 is the structure chart of screw conveyor in the prior art；
Fig. 2 is the structure chart of screw conveyor provided in an embodiment of the present invention；
Fig. 3 is the current vs figure of electromagnetism discharge capacity regulating valve provided in an embodiment of the present invention and solenoid-operated proportional reversal valve.
Specific embodiment
Specific embodiments of the present invention are described in detail below in conjunction with attached drawing.It should be understood that described herein
Specific embodiment be merely to illustrate and explain the present invention, be not intended to restrict the invention.
As shown in Fig. 2, Fig. 2 shows the structural schematic diagrams of screw conveyor provided in an embodiment of the present invention.
The embodiment of the invention provides a kind of screw conveyor, which includes: outer tube 2, and setting is described outer
Screw conveyor shaft 3 in pipe 2, the driving device 1 for driving the screw conveyor shaft 3 to rotate, wherein the screw conveyor shaft 3 wraps
The helical blade for including rotary shaft and being arranged in the rotary shaft；
It further include filling device, the filling device includes:
The air bag 5 of 2 inner sidewall of outer tube is set, and the gas supply dress for connecting with air bag 5 and being used to inflate to air bag
It sets, wherein air bag 5 is located between the inner sidewall and helical blade of outer tube 2, and inflates to air bag 5 so that air bag 5 in feeder
It is interior have first pressure when, between air bag 5 is at least partly filled between the inner sidewall of outer tube 2 and the lateral wall of helical blade
Gap.
It should be noted that the lateral wall of helical blade refers to the outer rim in helical blade radially direction, it is described outer
Gap between the inner sidewall of pipe 2 and the lateral wall of helical blade refers to: the corresponding helical blade of the inner sidewall of outer tube 2
Outer rim between gap.
In the above-described embodiments, the gap between helical blade and the inner sidewall of outer tube 2 is filled by using air bag 5, from
And screw conveyor is avoided when conveying material, material remains in outer tube 2, to cause the feelings of feeding metering inaccuracy
Condition.
The structure and working principle of screw conveyor provided in an embodiment of the present invention for convenience of explanation, below with reference to attached
Figure and specific embodiment are described.
As shown in Fig. 2, Fig. 2 shows the structural schematic diagrams of screw conveyor provided in an embodiment of the present invention.
The outer tube 2 of screw conveyor provided in this embodiment can be horizontally arranged in setting using as shown in Figure 2,
Or it uses and is obliquely installed.The outer tube 2 has hollow cavity, is provided with screw conveyor shaft 3, the screw conveyor shaft 3 in cavity
The helical blade of the rotary shaft is set including rotary shaft and spiral, in addition, the end of outer tube 2, which is connected with, drives the spiral transferring
The driving device 1 for sending axis 3 to rotate is provided with feed inlet and discharge port on the lateral wall of outer tube 2, at work, material from into
Material mouth enters in chamber, and driving device 1 drives screw conveyor shaft 3 to rotate, by the helical blade on screw conveyor shaft 3 by object
Material is transported to discharge port from feed inlet, completes entire transmission process.
The spiral conveying blade of screw conveyor in the prior art is in setting, referring to Fig. 1, in order to avoid it is being transported
It rubs when dynamic with the inner sidewall of outer tube 2, meanwhile, it is also convenient for the installation of screw conveyor shaft 3, in specific installation, helical-blade
There are certain gaps between the lateral wall of piece and the inner sidewall of outer tube 2.When being arranged using the above structure, although facilitating spiral shell
The installation of conveying axis 3 and the movement convenient for screw conveyor shaft 3 are revolved, but is inevitable and causes to convey for the first time when completion
When, due to the presence in above-mentioned gap, causes screw conveyor shaft 3 whole materials can not be transported to discharge port, complete every time
When conveying, the material that remaining can all occur is stayed in outer tube 2, causes the inaccuracy of material metering.In the present embodiment, in order to keep away
Exempt from above situation occur, screw conveyor provided in this embodiment is provided with filling device, which includes: that setting exists
Gas on 2 inner sidewall of outer tube and for filling gap between 2 inner sidewall of outer tube and the lateral wall of the helical blade
Capsule 5.
It is not inflated in air bag 5 specifically, at it in use, when start to convey material, at this point, due in air bag 5 not
It is filled with gas, certain gap is still had between the helical blade of screw conveyor shaft 3 and the inner sidewall of outer tube 2, passes through driving
The rotation of 1 normal driving screw conveyor shaft 3 of device, carries out material conveying, specifically, the driving device 1 is driving motor, the driving
The output shaft of motor and the rotation axis connection of screw conveyor shaft 3 simultaneously drive its rotation, in specific setting, in order to adjust revolving speed,
Deceleration device can be set between driving motor and screw conveyor shaft 3.
When entire transmission process is completed fastly, i.e. when the feed inlet of outer tube 2 is no longer fed, air bag 5 is inflated, this
When, driving device 1 still drives screw conveyor shaft 3 to be rotated.During air bag 5 is inflated, by helical blade
In gap filling between 2 inner sidewall of lateral wall and outer tube, i.e., by the expansion of air bag 5 by helical blade and 2 inner sidewall of outer tube
Between remaining material shift on helical blade, and the material of remaining is transported to by discharge port by the rotation of helical blade, from
And avoid material and remain in outer tube 2, improve the accuracy of material metering.
It should be understood that when, air bag 5 can be a hollow tubular structure, i.e., air bag 5 be in hollow tubular knot
Structure, and air bag 5, along the axially extending of screw conveyor, above-mentioned air bag 5, can be using in whole or in part in specific setting
Fill the gap between the inner wall and helical blade lateral wall of outer tube 2.For example, when air bag 5 fully fills gap, air bag packet
All helical blades are wrapped up in, when air bag 5 is partially filled with gap, the circumferentially wrapping portion blade of air bag 5, such as can only wrap
Wrap up in the helical blade of the helical blade of left end or the helical blade of right end or centre or the combination of above-mentioned several positions
Deng, when adopting the structure, be provided on air bag 5 evacuation feed inlet and discharge port notch.Or air bag 5 can also use
It is partially filled with the structure in gap between outer tube 2 and helical blade.At this point, the cross section of air bag 5 is in convex structure, the air bag
5 along the axially extending of screw conveyor, and the side of defective material material on the inner sidewall of outer tube 2 is arranged in the air bag 5.The circular arc
Minimum semi arch, and in setting, the side of defective material material on inner sidewall is arranged in air bag 5, for example, working as screw conveyor water
When placing flat, the bottom of screw conveyor is the side of defective material material on inner sidewall, air bag 5 can be set to spiral at this time
The bottom of conveyer.In the present embodiment, preferably, using air bag 5 for the structure of a tubular, that is, it ensure that the side of installation
Just, meanwhile, the remaining of material is avoided the occurrence of.
As a kind of perferred technical scheme, air bag 5 should meet, and when non-aerating, can be avoided helical blade to gas
Capsule 5 scratches, and in inflation, can fall the gap filling between 2 inner sidewall of the lateral wall of helical blade and outer tube.For reality
Existing said effect, preferably, the air bag 5 is elastic balloon 5, i.e., the air bag 5 is elastic material production.In 5 unaerated of air bag
When, due to the elastic property of air bag 5, air bag 5 is attached on the inner sidewall of outer tube 2, when air bag 5 is inflated, passes through
The elastic deformation of air bag 5 enables air bag 5 to fill the gap between 2 inner sidewall of outer tube and helical blade lateral wall.In addition,
When in use due to air bag 5, the friction between air bag 5 and material and air bag 5 and helical blade is inevitably caused, in order to
The service life for improving air bag 5, preferably, the material of the air bag 5 is made using wear-resistant material, specifically, the present embodiment
The elastic balloon 5 of offer is rubber pneumatic bag 5.Rubber material has good elasticity and good wear-resisting property, so as to
Meet above-mentioned requirements.
In order to control the amount for being filled with gas in air bag 5 provided in this embodiment, guarantee that air bag 5 can be filled out after charging gas
Fill the gap between outer tube 2 and helical blade inner sidewall, filling device provided in this embodiment further include: connect with the air bag 5
Connect and be used to detect the pressure sensor 8 of gas pressure in the air bag 5.The gas in air bag 5 is detected by pressure sensor 8
Pressure compares the air pressure of the air pressure and setting, thus guarantee that the amount for the gas being filled with is met the requirements, meanwhile, it avoids being filled with excessive
Gas cause 5 overinflation of air bag, thus the case where causing between air bag 5 and helical blade frictional force to increase.
In addition, in order to improve the degree of automation of entire filling device.Filling device further includes control device 4, the control
Device 4 processed controls the feeder and is filled with gas into air bag 5, until the air bag 5 of the pressure sensor 8 detection
Pressure reaches first pressure value.The automatic inflating to air bag 5 is realized by control device 4.Improve the effect entirely inflated
Fruit.
More preferably, as a kind of perferred technical scheme, the filling device further includes the feed inlet for monitoring the outer tube 2
Feed the monitoring sensor of situation；The control device 4 is also used to, and is stopped in the feed inlet for receiving the monitoring sensor monitoring
Only when feeding, controls the feeder and air bag 5 is inflated.Monitoring sensor is arranged by the feed inlet in outer tube 2,
The monitoring sensor can be an infrared transmitter and an infrared remote receiver, when in use, when feed inlet has material entrance
When, the infrared light of infrared transmitter transmitting is stopped by material, and infrared remote receiver can not receive light, at this point, being determined as outer
The feed inlet of pipe 2 has material entrance, when the light of infrared transmitter transmitting is received by infrared remote receiver, is determined as outer tube 2
Stop charging, starts to be supplied to air bag 5 at this point, control device 4 controls feeder.
It can be seen from the above description that completed by control device 4, monitoring sensor, pressure sensor 8 it is entire right
The automation control that air bag 5 is inflated improves the efficiency of operation.
When specifically used, air bag 5 is after charging gas, when screw conveyor reuses, needs to put air bag 5
Gas, preferably, the air bag 5 is provided with exhaust valve 6.It is deflated by the exhaust valve 6 of setting to air bag 5.
As a kind of perferred technical scheme, which is solenoid valve, and the control device 4 is also used to control described
Air bag 5 is exhausted in solenoid valve.The control of inflation and deflation to air bag 5 is realized by control device 4.It is specific
Control principle as shown in figure 3, Fig. 3 is shown, control device 4 respectively with the intake valve of feeder 7, exhaust valve 6 and pressure
Force snesor 8 connects, and by above-mentioned setting, realizes the control of inflation and the exhaust to air bag 5.
The present invention also provides a kind of control device of air bag inflation, which includes:
Receiving module, for receiving the charging information of outer tube and receiving the air pressure in the air bag detected；
Data module controls the feeder to being filled with gas in the air bag when the outer tube stops feeding, and
When air pressure in received air bag is lower than first pressure value, control the feeder to inputting gas in the air bag until
Air pressure in received air bag reaches first pressure value.
In the above-described embodiments, control device is used to control the inflation and deflation of air bag 5.In the gas that receiving module receives
Pressure be less than first pressure value when, data module control feeder to air bag 5 inflation until air pressure arrive first pressure value greatly, thus
Guarantee that the air pressure in air bag 5 meets the requirement in the gap that air bag 5 can fill between helical blade and outer tube 2.
More preferably, the receiving module is also used to receive the charging information of outer tube 2；
The data processing module is also used to control the feeder when the outer tube 2 stops feeding and start to institute
It states in air bag 5 and is filled with gas.I.e. by feeding the control of information to outer tube 2, the degree of automation of entire filling device is improved.
In specific control, the control method to air bag includes: the air pressure detected in air bag by pressure sensor, in gas
When pressure is less than first pressure value, control device control feeder is inflated air bag, sets until the pressure in air bag reaches
Fixed threshold value, to guarantee that air bag can fill the gap between helical blade and outer tube.
The embodiment of the invention also provides a kind of feeding method of screw conveyor, the feeding method the following steps are included:
When the feed inlet of screw conveyor stops charging, is inflated into air bag 5 and 2 inside of outer tube is filled by air bag 5
Gap between wall and helical blade lateral wall；
It drives screw conveyor shaft 3 to rotate, the material remained in outer tube 2 is transferred out.
In the above-mentioned technical solutions, after the feed inlet of screw conveyor stops charging, by being inflated to air bag 5,
Air bag 5 falls the gap filling between outer tube 2 and helical blade, so that helical blade can will remain in outer tube 2
Material is transported to discharge outlet and sends out.
When specific operation, inflates in the air bag 5 and filled on the outside of 2 inner sidewall of outer tube and helical blade by air bag 5
Gap between wall specifically:
The pressure in air bag 5 is detected by pressure sensor 8, and gas is filled with into air bag 5 by feeder, until
The pressure for the air bag 5 that the pressure sensor 8 detects reaches first pressure value.
I.e. by pressure sensor 8 detect air bag 5 in pressure, and by feeder to air bag 5 carry out gas supply until
Pressure in air bag 5 meets first pressure value.When air bag 5 meets first pressure value, air bag 5 is by 2 inner sidewall of outer tube and spiral
Gap filling between blade outboard wall guarantees that material can be sent.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (13)
1. a kind of screw conveyor, comprising: the screw conveyor shaft in the outer tube is arranged in outer tube, drives the helical feed
The driving device of axis rotation, wherein the screw conveyor shaft includes rotary shaft and the helical-blade that is arranged in the rotary shaft
Piece；It is characterized in that,
It further include filling device, the filling device includes:
Air bag is set on the outer tube inner sidewall, and the gas supply dress for connecting with the air bag and being used to inflate to the air bag
It sets, wherein the air bag is between the outer tube inner sidewall and the helical blade, and in the feeder to the gas
Capsule is inflated in air bag when having first pressure, and the air bag at least partly fills the outer tube inner sidewall and the helical-blade
Gap between the lateral wall of piece.
2. screw conveyor as described in claim 1, which is characterized in that the filling device further include: connect with the air bag
Connect and be used to detect the pressure sensor of gas pressure in the air bag.
3. screw conveyor as claimed in claim 2, which is characterized in that the filling device further includes control device, described
Control device controls the feeder and is filled with gas into air bag, until the pressure of the air bag of pressure sensor detection
Power reaches first pressure value.
4. screw conveyor as claimed in claim 3, which is characterized in that the filling device further includes monitoring the outer tube
The monitoring sensor of throat-fed situation；
The control device is also used to, when the feed inlet for receiving the monitoring sensor monitoring stops feeding, described in control
Feeder is inflated air bag.
5. screw conveyor as claimed in claim 4, which is characterized in that the air bag is provided with exhaust valve.
6. screw conveyor as claimed in claim 5, which is characterized in that the exhaust valve is solenoid valve, the control device
It is also used to control the solenoid valve air bag is exhausted.
7. screw conveyor as described in any one of claims 1 to 6, which is characterized in that the air bag is elastic balloon.
8. screw conveyor as claimed in claim 7, which is characterized in that the elastic balloon is rubber pneumatic bag.
9. screw conveyor as described in claim 1, which is characterized in that air bag is in the structure of hollow tubular, the air bag
Along the axially extending of screw conveyor.
10. screw conveyor as described in claim 1, which is characterized in that the cross section of air bag is in convex structure, the gas
Capsule is along the axially extending of screw conveyor, and the side of defective material material on the inner sidewall of outer tube is arranged in the air bag.
11. a kind of control device of screw conveyor as described in claim 1 characterized by comprising
Receiving module, for receiving the charging information of outer tube and receiving the air pressure in the air bag detected；
Data module controls the feeder to being filled with gas in the air bag, and connecing when the outer tube stops feeding
When air pressure in the air bag of receipts is lower than first pressure value, the feeder is controlled to input gas in the air bag until receiving
Air bag in air pressure reach first pressure value.
12. a kind of feeding method of screw conveyor as described in claim 1, which comprises the following steps:
When the feed inlet of screw conveyor stops charging, is inflated into air bag and pass through air bag and fill outer tube inner sidewall and spiral
Gap between blade outboard wall；
Screw conveyor shaft rotation is driven, the material remained in outer tube is transferred out.
13. feeding method as claimed in claim 12, which is characterized in that inflated in the air bag and fill outer tube by air bag
Gap between inner sidewall and helical blade lateral wall specifically:
The pressure in air bag is detected by pressure sensor, and gas is filled with into air bag by feeder, until the pressure
The pressure of the air bag of force snesor detection reaches first pressure value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510666125.2A CN106586460B (en) | 2015-10-15 | 2015-10-15 | Screw conveyor, control device and feeding method |
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| CN201510666125.2A CN106586460B (en) | 2015-10-15 | 2015-10-15 | Screw conveyor, control device and feeding method |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108163473B (en) * | 2017-12-28 | 2020-05-12 | 胜帮科技股份有限公司 | Powder material conveying device |
| CN111806982B (en) * | 2020-07-22 | 2022-01-04 | 海南河道综合整治工程有限公司 | Mechanism sand conveyer |
| CN112285033B (en) * | 2020-10-19 | 2021-07-23 | 海南省林业科学研究院(海南省红树林研究院) | Unmanned aerial vehicle with forest heavy metal spectrum inversion and sample collection functions |
| CN113928827B (en) * | 2021-11-25 | 2023-06-16 | 湖北北新建材有限公司 | Reamer powder conveyor is carried to pipe |
| CN116510330B (en) * | 2023-06-29 | 2023-12-08 | 山东第一医科大学第一附属医院(山东省千佛山医院) | Solid-liquid separation device for paste medicine applied by rheumatism |
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|---|---|---|---|---|
| GB626529A (en) * | 1946-05-21 | 1949-07-18 | John Berrien Rogers | Feeding granular materials into a head of pressure |
| CN101602438A (en) * | 2009-05-05 | 2009-12-16 | 中冶赛迪工程技术股份有限公司 | Spiral powder conveying device |
| CN203819946U (en) * | 2014-04-04 | 2014-09-10 | 北京机电院高技术股份有限公司 | External heating type shaftless draining spiral conveyor |
| CN204265003U (en) * | 2014-10-29 | 2015-04-15 | 内江华原电子材料有限公司 | A kind of strength conveyor screw |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3099358B2 (en) * | 1990-10-26 | 2000-10-16 | 三菱化学株式会社 | Powder degassing equipment |
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- 2015-10-15 CN CN201510666125.2A patent/CN106586460B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB626529A (en) * | 1946-05-21 | 1949-07-18 | John Berrien Rogers | Feeding granular materials into a head of pressure |
| CN101602438A (en) * | 2009-05-05 | 2009-12-16 | 中冶赛迪工程技术股份有限公司 | Spiral powder conveying device |
| CN203819946U (en) * | 2014-04-04 | 2014-09-10 | 北京机电院高技术股份有限公司 | External heating type shaftless draining spiral conveyor |
| CN204265003U (en) * | 2014-10-29 | 2015-04-15 | 内江华原电子材料有限公司 | A kind of strength conveyor screw |
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| CN106586460A (en) | 2017-04-26 |
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